In addition to petechiae (red dots on the skin), this can appear as purpura (larger red or purple areas), or ecchymoses (bruises), she says. According to Forrestel, these spots usually take weeks ...

The present finding deals with a simple and low-cost fabrication of surface-passivated, brightly fluorescent zinc-oxide-decorated, red-emitting excitation-independent ultrafluorescent CDs, denoted as ...